1
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Yu A, Liu S, Yang Y. Recent advances in electrosynthesis of H 2O 2via two-electron oxygen reduction reaction. Chem Commun (Camb) 2024; 60:5232-5244. [PMID: 38683172 DOI: 10.1039/d4cc01476f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The electrosynthesis of hydrogen peroxide (H2O2) via a selective two-electron oxygen reduction reaction (2e- ORR) presents a green and low-energy-consumption alternative to the traditional, energy-intensive anthraquinone process. This review encapsulates the principles of designing relational electrocatalysts for 2e- ORR and explores remaining setups for large-scale H2O2 production. Initially, the review delineates the fundamental reaction mechanisms of H2O2 production via 2e- ORR and assesses performance. Subsequently, it methodically explores the pivotal influence of microstructures, heteroatom doping, and metal hybridization along with setup configurations in achieving a high-performance catalyst and efficient reactor for H2O2 production. Thereafter, the review introduces a forward-looking methodology that leverages the synergistic integration of catalysts and reactors, aiming to harmonize the complementary characteristics of both components. Finally, it outlines the extant challenges and the promising avenues for the efficient electrochemical production of H2O2, setting the stage for future research endeavors.
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Affiliation(s)
- Ao Yu
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
| | - Shengwen Liu
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
| | - Yang Yang
- NanoScience Technology Center, University of Central Florida, Orlando, FL, 32826, USA.
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32826, USA
- Renewable Energy and Chemical Transformation Cluster, University of Central Florida, Orlando, FL 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL 32826, USA
- The Stephen W. Hawking Center for Microgravity Research and Education, University of Central Florida, Orlando, FL 32826, USA
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2
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Albashir AIM, Lu X, Dai X, Qi W. Effects of porous structure and oxygen functionalities on electrochemical synthesis of hydrogen peroxide on ordered mesoporous carbon. Commun Chem 2024; 7:111. [PMID: 38740979 DOI: 10.1038/s42004-024-01194-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024] Open
Abstract
Two-electron oxygen reduction reaction (2e- ORR) is a promising alternative to energy-intensive anthraquinone process for hydrogen peroxide (H2O2) production. Metal-free nanocarbon materials have garnered intensive attention as highly prospective electrocatalysts for H2O2 production, and an in-depth understanding of their porous structure and active sites have become a critical scientific challenge. The present research investigates a range of porous carbon catalysts, including non-porous, microporous, and mesoporous structures, to elucidate the impacts of porous structures on 2e- ORR activity. The results highlighted the superiority of mesoporous carbon over other porous materials, demonstrating remarkable H2O2 selectivity. Furthermore, integration of X-ray photoelectron spectroscopy (XPS) data analysis with electrochemical assessment results unravels the moderate surface oxygen content is the key to increase 2e- ORR activity. These results not only highlight the intricate interplay between pore structure and oxygen content in determining catalytic selectivity, but also enable the design of carbon catalysts for specific electrochemical reactions.
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Affiliation(s)
- Abdalazeez Ismail Mohamed Albashir
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, Liaoning, People's Republic of China
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, People's Republic of China
| | - Xingyu Lu
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, Liaoning, People's Republic of China
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, People's Republic of China
| | - Xueya Dai
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, Liaoning, People's Republic of China
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, People's Republic of China
| | - Wei Qi
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, Liaoning, People's Republic of China.
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, People's Republic of China.
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3
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Jia S, Yu H, Na J, Liu Z, Lv K, Ren Z, Sun S, Shao Z. Efficient Electrosynthesis of Hydrogen Peroxide Using Oxygen-Doped Porous Carbon Catalysts at Industrial Current Densities. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38659341 DOI: 10.1021/acsami.4c00042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Metal-free carbon catalysts (MFCCs) are one of the commonly used catalysts for electrocatalytic two-electron oxygen reduction (2e- ORR) synthesis of hydrogen peroxide (H2O2). Oxygen doping is an effective means to improve the performance of MFCCs, but the performance of oxygen-doped carbon catalysts is still not high enough, and the contribution of different oxygen functional groups (OFGs) to the catalytic performance is still inconclusive. In this paper, carbon-based catalysts with different oxygen contents and ratios of OFGs were prepared, and the high 2e- ORR activity of COOH + C-OH was demonstrated by combining the results of experiments and theoretical calculations. The prepared oxygen-doped carbon-based catalyst C-0.1M80 achieved an onset potential of 0.795 V (vs RHE), a selectivity of up to 98.2% (0.6 V vs RHE), and a H2O2 oxidation current of 1.33 mA cm-2 (0.5 V vs RHE) in a rotating ring-disk electrode test (0.1 M KOH solution), which was an outstanding performance in MFCCs. In a solid electrolyte flow cell, C-0.1M80 achieved a Faraday efficiency of 97.5% at 200 mA cm-2 with a corresponding H2O2 production rate of 123.7 mg cm-2 h-1. In addition, a flow cell stability test was performed at an industrial current density (100 mA cm-2) with an astounding 200 h of uninterrupted operation, also achieving an outstanding average Faradaic efficiency (95.8%).
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Affiliation(s)
- Senyuan Jia
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongmei Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jingchen Na
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhicheng Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaiqiu Lv
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiwei Ren
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shucheng Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhigang Shao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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4
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Hübner JL, Lucchetti LEB, Nong HN, Sharapa DI, Paul B, Kroschel M, Kang J, Teschner D, Behrens S, Studt F, Knop-Gericke A, Siahrostami S, Strasser P. Cation Effects on the Acidic Oxygen Reduction Reaction at Carbon Surfaces. ACS ENERGY LETTERS 2024; 9:1331-1338. [PMID: 38633991 PMCID: PMC11019649 DOI: 10.1021/acsenergylett.3c02743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 04/19/2024]
Abstract
Hydrogen peroxide (H2O2) is a widely used green oxidant. Until now, research has focused on the development of efficient catalysts for the two-electron oxygen reduction reaction (2e- ORR). However, electrolyte effects on the 2e- ORR have remained little understood. We report a significant effect of alkali metal cations (AMCs) on carbons in acidic environments. The presence of AMCs at a glassy carbon electrode shifts the half wave potential from -0.48 to -0.22 VRHE. This cation-induced enhancement effect exhibits a uniquely sensitive on/off switching behavior depending on the voltammetric protocol. Voltammetric and in situ X-ray photoemission spectroscopic evidence is presented, supporting a controlling role of the potential of zero charge of the catalytic enhancement. Density functional theory calculations associate the enhancement with stabilization of the *OOH key intermediate as a result of locally induced field effects from the AMCs. Finally, we developed a refined reaction mechanism for the H2O2 production in the presence of AMCs.
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Affiliation(s)
- J. L. Hübner
- Department
of Chemistry, Chemical Engineering Division, Technical University of Berlin, 10623 Berlin, Germany
| | - L. E. B. Lucchetti
- Centro
de Ciências Naturais e Humanas, Federal
University of ABC, Bairro Bangu, 09210-170 Santo André, Brazil
| | - H. N. Nong
- Department
of Chemistry, Chemical Engineering Division, Technical University of Berlin, 10623 Berlin, Germany
| | - D. I. Sharapa
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - B. Paul
- Department
of Chemistry, Chemical Engineering Division, Technical University of Berlin, 10623 Berlin, Germany
| | - M. Kroschel
- Department
of Chemistry, Chemical Engineering Division, Technical University of Berlin, 10623 Berlin, Germany
| | - J. Kang
- Department
of Chemistry, Chemical Engineering Division, Technical University of Berlin, 10623 Berlin, Germany
| | - D. Teschner
- Department
of Inorganic Chemistry, Fritz-Haber-Institute
of the Max-Planck-Society, 14195 Berlin, Germany
- Department
of Heterogeneous Reactions, Max-Planck-Institute
for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - S. Behrens
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - F. Studt
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
| | - A. Knop-Gericke
- Department
of Inorganic Chemistry, Fritz-Haber-Institute
of the Max-Planck-Society, 14195 Berlin, Germany
- Department
of Heterogeneous Reactions, Max-Planck-Institute
for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - S. Siahrostami
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A1S6, Canada
| | - P. Strasser
- Department
of Chemistry, Chemical Engineering Division, Technical University of Berlin, 10623 Berlin, Germany
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5
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Yang H, An N, Kang Z, Menezes PW, Chen Z. Understanding Advanced Transition Metal-Based Two Electron Oxygen Reduction Electrocatalysts from the Perspective of Phase Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2400140. [PMID: 38456244 DOI: 10.1002/adma.202400140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/26/2024] [Indexed: 03/09/2024]
Abstract
Non-noble transition metal (TM)-based compounds have recently become a focal point of extensive research interest as electrocatalysts for the two electron oxygen reduction (2e- ORR) process. To efficiently drive this reaction, these TM-based electrocatalysts must bear unique physiochemical properties, which are strongly dependent on their phase structures. Consequently, adopting engineering strategies toward the phase structure has emerged as a cutting-edge scientific pursuit, crucial for achieving high activity, selectivity, and stability in the electrocatalytic process. This comprehensive review addresses the intricate field of phase engineering applied to non-noble TM-based compounds for 2e- ORR. First, the connotation of phase engineering and fundamental concepts related to oxygen reduction kinetics and thermodynamics are succinctly elucidated. Subsequently, the focus shifts to a detailed discussion of various phase engineering approaches, including elemental doping, defect creation, heterostructure construction, coordination tuning, crystalline design, and polymorphic transformation to boost or revive the 2e- ORR performance (selectivity, activity, and stability) of TM-based catalysts, accompanied by an insightful exploration of the phase-performance correlation. Finally, the review proposes fresh perspectives on the current challenges and opportunities in this burgeoning field, together with several critical research directions for the future development of non-noble TM-based electrocatalysts.
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Affiliation(s)
- Hongyuan Yang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Na An
- Materials Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
- Materials Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
| | - Ziliang Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
- Materials Chemistry Group for Thin Film Catalysis - CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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6
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Li C, Wang Y, Xu S, Wang X, Yang Y, Wang H, Gong M, Yang X. Regulating the Innocuity of Urea Electro-Oxidation via Cation-mediated Adsorption. CHEMSUSCHEM 2023; 16:e202300766. [PMID: 37602526 DOI: 10.1002/cssc.202300766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 08/22/2023]
Abstract
Urea electrolysis is an emerging technology that bridges efficient wastewater treatment and hydrogen production with lower electricity costs. However, conventional Ni-based catalysts could easily overoxidize urea into the secondary contaminant NOx - , and enhancing the innocuity of urea electrolysis remains a grand challenge to be achieved. Herein, we tailored the electrode-electrolyte interface of an unconventional cation effect on the anodic oxidation of urea to regulate its activity and selectivity. Smaller cations of Li+ were discovered to increase the Faradaic efficiency (FE) of the innocuous N2 product from the standard value of ~15 % to 45 %, while decreasing the FEs of the over-oxidized NOx - product from ~80 % to 46 %, pointing to a more sustainable process. The kinetic and computational analysis revealed the dominant residence of cations on the outer Helmholtz layer, which forms the interactions with the surface adsorbates. The Li+ hydration shells and rigid hydrogen bonding network interact strongly with the adsorbed urea to decrease its adsorption energy and subjection to C-N cleavage, thereby directing it toward the N2 pathway. This work emphasizes the tuning of the interactions within the electrode-electrolyte interface for enhancing the efficiency and sustainability of electrocatalytic processes.
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Affiliation(s)
- Chong Li
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Yongjie Wang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Shengshuo Xu
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Xue Wang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Yizhou Yang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Hualing Wang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Ming Gong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200438, Shanghai, P. R. China
| | - Xuejing Yang
- National Engineering Laboratory for Industrial Wastewater Treatment, East China University of Science and Technology, 200237, Shanghai, P. R. China
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7
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Lee SY, Kim J, Bak G, Lee E, Kim D, Yoo S, Kim J, Yun H, Hwang YJ. Probing Cation Effects on *CO Intermediates from Electroreduction of CO 2 through Operando Raman Spectroscopy. J Am Chem Soc 2023; 145:23068-23075. [PMID: 37807716 DOI: 10.1021/jacs.3c05799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Cations in an electrolyte modulate microenvironments near the catalyst surface and affect product distribution from an electrochemical CO2 reduction reaction, and thus, their interaction with intermediate states has been tried to be probed. Herein, we directly observed the cation effect on *CO intermediates on the Cu(OH)2-derived catalyst in real time through operando surface-enhanced Raman spectroscopy at high overpotentials (-1.0 VRHE). Atop *CO peaks are composed of low-frequency binding *CO (*COLFB) and high-frequency binding *CO (*COHFB) because of their adsorption sites. These two *CO intermediates are found to have different sensitivities to the cation-induced field, and each *CO is proposed to be suitably stabilized for efficient C-C coupling. The proportions between *COHFB and *COLFB are dependent on the type of alkali cations, and the increases in the *COHFB ratio have a high correlation with selective C2H4 production under K+ and Cs+, indicating that *COHFB is the dominant and fast active species. In addition, as the hydrated cation size decreases, *COLFB is more sensitively red-shifted than *COHFB, which promotes C-C coupling and suppresses C1 products. Through time-resolved operando measurements, dynamic changes between the two *CO species are observed, showing the rapid initial adsorption of *COHFB and subsequently reaching a steady ratio between *COLFB and *COHFB.
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Affiliation(s)
- Si Young Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Jimin Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Gwangsu Bak
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Eunchong Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Dayeon Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Suhwan Yoo
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jiwon Kim
- Department of Chemical and Biomolecular Engineering, Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul 03722, Republic of Korea
- Clean Energy Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Hyewon Yun
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Yun Jeong Hwang
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
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8
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Deng F, Yang S, Jing B, Qiu S. Activated carbon filled in a microporous titanium-foam air diffusion electrode for boosting H 2O 2 accumulation. CHEMOSPHERE 2023; 321:138147. [PMID: 36796525 DOI: 10.1016/j.chemosphere.2023.138147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 01/05/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
In the electro-Fenton process, there still suffers concern of low H2O2 generation caused by inadequate mass transfer of oxygen and low selectivity of oxygen reduction reaction (ORR). To solve it, in this study, various particle sizes (850 μm, 150 μm, and 75 μm) of granular activated carbon filled in a microporous titanium-foam substate was used to develop a gas diffusion electrode (AC@Ti-F GDE). This facile-prepared cathode has seen a 176.15% improvement in H2O2 formation compared to the conventional one. Aside from a much higher oxygen mass transfer by creating gas-liquid-solid three-phase interfaces coupled with much high dissolved oxygen, the filled AC played a significant role in H2O2 accumulation. Among these particle sizes of AC, the one in 850 μm has observed the highest H2O2 accumulation, reaching 1487 μM in 2 h electrolysis. Because there is a balance between chemical nature for H2O2 formation and micropore-dominant porous structure for H2O2 decomposition, resulting in an electron transfer of 2.12 and H2O2 selectivity of 96.79% during ORR. In a word, the facial AC@Ti-F GDE configuration is promising for H2O2 accumulation.
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Affiliation(s)
- Fengxia Deng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Shilin Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Baojian Jing
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Shan Qiu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
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9
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Deng F, Olvera-Vargas H, Zhou M, Qiu S, Sirés I, Brillas E. Critical Review on the Mechanisms of Fe 2+ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies. Chem Rev 2023; 123:4635-4662. [PMID: 36917618 DOI: 10.1021/acs.chemrev.2c00684] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
This review presents an exhaustive overview on the mechanisms of Fe3+ cathodic reduction within the context of the electro-Fenton (EF) process. Different strategies developed to improve the reduction rate are discussed, dividing them into two categories that regard the mechanistic feature that is promoted: electron transfer control and mass transport control. Boosting the Fe3+ conversion to Fe2+ via electron transfer control includes: (i) the formation of a series of active sites in both carbon- and metal-based materials and (ii) the use of other emerging strategies such as single-atom catalysis or confinement effects. Concerning the enhancement of Fe2+ regeneration by mass transport control, the main routes involve the application of magnetic fields, pulse electrolysis, interfacial Joule heating effects, and photoirradiation. Finally, challenges are singled out, and future prospects are described. This review aims to clarify the Fe3+/Fe2+ cycling process in the EF process, eventually providing essential ideas for smart design of highly effective systems for wastewater treatment and valorization at an industrial scale.
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Affiliation(s)
- Fengxia Deng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China.,Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Hugo Olvera-Vargas
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México (IER-UNAM), Priv. Xochicalco S/N, Col. Centro, Temixco, Morelos CP 62580, México
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, P. R. China
| | - Shan Qiu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Ignasi Sirés
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Enric Brillas
- Laboratori d'Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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10
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Lim JS, Kim J, Lee KS, Sa YJ, Joo SH. Impact of Catalyst Loading of Atomically Dispersed Transition Metal Catalysts on H2O2 Electrosynthesis Selectivity. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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11
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Deng F, Jiang J, Sirés I. State-of-the-art review and bibliometric analysis on electro-Fenton process. CARBON LETTERS 2023; 33. [PMCID: PMC9594000 DOI: 10.1007/s42823-022-00420-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 06/04/2023]
Abstract
The electro-Fenton (EF) process was first proposed in 1996 and, since then, considerable development has been achieved for its application in wastewater treatment, especially at lab and pilot scale. After more than 25 years, the high efficiency, versatility and environmental compatibility of EF process has been demonstrated. In this review, bibliometrics has been adopted as a tool that allows quantifying the development of EF as well as introducing some useful correlations. As a result, information is summarized in a more visual manner that can be easily analyzed and interpreted as compared to conventional reviewing. During the recent decades under review, 83 countries have contributed to the dramatic growth of EF publications, with China, Spain and France leading the publication output. The top 12 most cited articles, along with the top 32 most productive authors in the EF field, have been screened. Four stages have been identified as main descriptors of the development of EF throughout these years, being each stage characterized by relevant breakthroughs. To conclude, a general cognitive model for the EF process is proposed, including atomic, microscopic and macroscopic views, and future perspectives are discussed.
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Affiliation(s)
- Fengxia Deng
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090 People’s Republic of China
- Laboratori d’Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Jizhou Jiang
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205 People’s Republic of China
| | - Ignasi Sirés
- Laboratori d’Electroquímica dels Materials i del Medi Ambient, Departament de Ciència de Materials i Química Física, Secció de Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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12
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Lee J, Lee Y, Lim JS, Kim SW, Jang H, Seo B, Joo SH, Sa YJ. Discriminating active sites for the electrochemical synthesis of H 2O 2 by molecular functionalisation of carbon nanotubes. NANOSCALE 2022; 15:195-203. [PMID: 36477469 DOI: 10.1039/d2nr04652k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The electrochemical production of H2O2via the two-electron oxygen reduction reaction (2e- ORR) has recently attracted attention as a promising alternative to the current anthraquinone process. Identification of active sites in O-doped carbon materials, which exhibit high activities and selectivities for the 2e- ORR, is important for understanding the selective electrocatalytic process and achieving the rational design of active electrocatalysts. However, this is impeded by the heterogeneous distribution of various active sites on these catalysts. In this study, we exploited the molecular functionalisation approach to implant anthraquinone, benzoic acid, and phenol groups on carbon nanotubes and systematically compared the electrocatalytic activities and selectivities of these functional groups. Among these oxygen functional groups, the anthraquinone group showed the highest surface-area-normalised and active-site-normalised activities.
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Affiliation(s)
- Juyeon Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Yesol Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - June Sung Lim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sun Woo Kim
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Bora Seo
- Hydrogen and Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Energy & Environment Technology, KIST School, University of Science and Technology (UST), Seoul, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
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Wang J, Zhou W, Li J, Yang C, Meng X, Gao J. Insights into the effects of pulsed parameters on H2O2 synthesis by two-electron oxygen reduction under pulsed electrocatalysis. Electrochem commun 2022. [DOI: 10.1016/j.elecom.2022.107414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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14
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Steric hindrance effect induced photopurification of styrene oxide over surface modified polymeric carbon nitride. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Long X, Ling Y, Chang C, Luo F, Yang Z. Fluorine dopants in tungsten sulfide boost the efficiency of H 2O 2 electro-synthesis via the oxygen reduction reaction. Chem Commun (Camb) 2022; 58:9782-9785. [PMID: 35969092 DOI: 10.1039/d2cc03463h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we report fluorine-doped tungsten sulfide as an exceptional electrocatalyst for H2O2 generation (95% at 0.6 V vs. RHE). The fluorine dopants boost the catalytic efficiency by reducing the binding strength between the catalytic center and OOH* species.
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Affiliation(s)
- Xue Long
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, 388 Lumo RD, Wuhan, 430074, P. R. China
| | - Ying Ling
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, 388 Lumo RD, Wuhan, 430074, P. R. China
| | - Chaofeng Chang
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, 388 Lumo RD, Wuhan, 430074, P. R. China
| | - Fang Luo
- State Key Laboratory for Hubei New Textile Materials and Advanced Processing Technology, School of Materials Science and Engineering, Wuhan Textile University, 430200, Wuhan, P. R. China.
| | - Zehui Yang
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, 388 Lumo RD, Wuhan, 430074, P. R. China
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